情态动词 have to. had better. wsed to. ought to. be supposed. be adle to. have got to 的造句

作者&投稿:鬱凝 (若有异议请与网页底部的电邮联系)
英语中ought to,be supposed to do和should 的区别~

be supposed to do sth: 表示已经计划好的,然后按照计划应该做的。You should make an appointment first and you are supposed to be arrive on time.

should do sth: 主管看法上的应该做什么事情。you should tight safe belt when you are driving.开车时应该系好安全带。

ought to与should意思接近,大多数情况下二者可以互换,但是should谈的是自己的主观看法,ought to则更多反映客观情况,在谈到法律、义务和规定时使用。

1ought to .should.be supposed to do大体上的意思是相同的,通常可以互相转换

2.ought to比should 语气强
(1)should 表示主观看法,一些建议,劝说时,译作“应当”.
ought to,直接接动词原形,更多反映客观情况,“有义务”或“必要”做某事,译为“应当,应该”
(2)ought to的否定就表示做某事一定是错误的
而should的否定就表示某动作不一定要做
3.should可以用于虚拟语态,
而ought to 不能
ught to 是唯一一个可加to的情态动词
4.be supposed to do意为“应该、被期望、理应”,用来表示根据规定或传统习惯人们不得不做的事.时态、人称和句式的变化用be来体现,to为不定式符号,后接动词原形.1.be supposed to do的肯定句式为:Everyone is supposed to wear a seat-belt in t he car.每个人在小汽车里都

ought to、be supposed to do、should的区别为:意思不同、用法不同、侧重点不同。
一、意思不同
1、ought to:应该,应当,(表示期望或可能发生的事)应该。
2、be supposed to do:应当,应该。
3、should:(常用于纠正别人)应该,应当,(提出或征询建议)该,可以。
二、用法不同
1、ought to:ought常接不定式符号to,用作情态动词表示责任或义务时作“应该”解,表示劝告或推荐时作“应当”解,表示推论时作“可能会”解,但都不及must语气强烈。其否定形式为ought not to,也可缩写成oughtn't to。

2、be supposed to do:suppose的基本意思是指在证据不全、情况未确定时所作的猜想。可指缺乏确切的事实但可根据一些现象来推测,也可指提出合乎逻辑推理的假设来论证某事,还可指委婉地提出建议。
3、should:用于陈述语气,构成第一人称过去将来时、过去将来完成时以及过去将来进行时。用于主句中构成虚拟语气,should+动词不定式的原形,表示虚拟结果时指现在,表示推测结果时指将来。
三、侧重点不同
1、ought to:直接接动词原形,更多反映客观情况。
2、be supposed to do:表示根据规定或传统习惯人们不得不做的事。
3、should:表示主观看法,一些建议。

1.You have to finish your home work on time.
2.You'd better go to school on foot.
3.I used to get up late,but now I'm used to getting up early.
4.You are sopposed to go to college some day.
5.The little boy is able to draw horses.
6.I have got to go home now.

You have to study hard otherwise you will not go to a good colledge
I am a good student who can be able to study well
you had better choose science because you like it not other want

I have to stay at home today,because my mother is ill,
You'd better send her some flowers.
He used to be a student,but now he is a teacher.
I think he ought to come here soon.
We are supposed to help each other.
I was able to swim when I was fourteen years old.
I have got to go to Shanghai at once.


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